A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6105-00-824-2364
NSN 5905-00-708-0891
NSN 5998-01-026-0311
NSN 5835-00-516-8675
NSN 7035-01-386-5722
NSN 5895-00-179-3950
NSN 5855-00-444-2298
NSN 5935-01-411-5370
NSN 6145-01-619-7986
NSN 6610-01-039-0788
NSN 5998-01-057-8558
NSN 6105-01-561-0330